<template>
    <div id="wxEditor">
        <div v-loading="quillUpdateImg" element-loading-text="请稍等，图片上传中">
            <!-- 图片上传组件辅助-->
            <el-upload class="avatar-uploader" :action="serverUrl" name="file" :headers="header" :show-file-list="false"
                :data="uploadData" :on-success="uploadSuccess" :on-error="uploadError" :before-upload="beforeUpload">
            </el-upload>
            <quill-editor class="editor" v-model="content" ref="myQuillEditor" :options="editorOption"
                @blur="onEditorBlur($event)" @focus="onEditorFocus($event)" @change="onEditorChange($event)">
            </quill-editor>
        </div>
    </div>
</template>

<script>
// 工具栏配置
const toolbarOptions = [
    ["bold", "italic", "underline", "strike"], // 加粗 斜体 下划线 删除线
    ["blockquote", "code-block"], // 引用  代码块
    [{ header: 1 }, { header: 2 }], // 1、2 级标题
    [{ list: "ordered" }, { list: "bullet" }], // 有序、无序列表
    [{ script: "sub" }, { script: "super" }], // 上标/下标
    [{ indent: "-1" }, { indent: "+1" }], // 缩进
    // [{'direction': 'rtl'}],                         // 文本方向
    [{ size: ["small", false, "large", "huge"] }], // 字体大小
    [{ header: [1, 2, 3, 4, 5, 6, false] }], // 标题
    [{ color: [] }, { background: [] }], // 字体颜色、字体背景颜色
    [{ font: [] }], // 字体种类
    [{ align: [] }], // 对齐方式
    ["clean"], // 清除文本格式
    ["link", "image", "video"] // 链接、图片、视频
]

import { quillEditor } from "vue-quill-editor"
import "quill/dist/quill.core.css"
import "quill/dist/quill.snow.css"
import "quill/dist/quill.bubble.css"
import { getToken } from '@/utils/auth'

export default {
    props: {
        uploadData: {
            type: Object
        },
        /*编辑器的内容*/
        value: {
            type: String
        },
        /*图片大小*/
        maxSize: {
            type: Number,
            default: 4000 //kb
        }
    },
    name: 'wxEditor',
    components: {
        quillEditor
    },
    data() {
        return {
            editorType: '1',
            content: this.value.replace(/data-src/g, "src"),

            quillUpdateImg: false, // 根据图片上传状态来确定是否显示loading动画，刚开始是false,不显示
            editorOption: {
                placeholder: "",
                theme: "snow", // or 'bubble'
                placeholder: "请输入文章内容",
                modules: {
                    toolbar: {
                        container: toolbarOptions,
                        // container: "#toolbar",
                        handlers: {
                            image: function (value) {
                                if (value) {
                                    // 触发input框选择图片文件
                                    document.querySelector(".avatar-uploader input").click();
                                } else {
                                    this.quill.format("image", false);
                                }
                            },
                            link: function (value) {
                                if (value) {
                                    var href = prompt('注意！只支持公众号图文链接');
                                    this.quill.format("link", href);
                                } else {
                                    this.quill.format("link", false);
                                }
                            },
                        }
                    }
                }
            },
            serverUrl: "/dev-api/wxmaterial/newsImgUpload", // 这里写你要上传的图片服务器地址
            header: {
                Authorization: 'Bearer ' + getToken()
            } // 有的图片服务器要求请求头需要有token
        }
    },
    created() {

    },
    methods: {
        onEditorBlur(editor) {
            //失去焦点事件
        },
        onEditorFocus(editor) {
            //获得焦点事件
        },
        onEditorChange(editor) {
            //内容改变事件
            this.$emit("input", this.content)
        },

        // 富文本图片上传前
        beforeUpload() {
            // 显示loading动画
            this.quillUpdateImg = true
        },

        uploadSuccess(res, file) {
            // res为图片服务器返回的数据
            // 获取富文本组件实例
            let quill = this.$refs.myQuillEditor.quill
            // 如果上传成功
            if (res.link) {
                // 获取光标所在位置
                let length = quill.getSelection().index;
                // 插入图片  res.info为服务器返回的图片地址
                quill.insertEmbed(length, 'image', res.link)
                // 调整光标到最后
                quill.setSelection(length + 1)
            } else {
                this.$message.error('图片插入失败')
            }
            // loading动画消失
            this.quillUpdateImg = false;
        },
        // 富文本图片上传失败
        uploadError() {
            // loading动画消失
            this.quillUpdateImg = false;
            this.$message.error("图片插入失败");
        }
    }
}
</script>

<style>
.editor {
    line-height: normal !important;
    height: 500px;
}

.ql-snow .ql-tooltip[data-mode=link]::before {
    content: "请输入链接地址:";
}

.ql-snow .ql-tooltip.ql-editing a.ql-action::after {
    border-right: 0px;
    content: '保存';
    padding-right: 0px;
}

.ql-snow .ql-tooltip[data-mode=video]::before {
    content: "请输入视频地址:";
}

.ql-snow .ql-picker.ql-size .ql-picker-label::before,
.ql-snow .ql-picker.ql-size .ql-picker-item::before {
    content: '14px';
}

.ql-snow .ql-picker.ql-size .ql-picker-label[data-value=small]::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value=small]::before {
    content: '10px';
}

.ql-snow .ql-picker.ql-size .ql-picker-label[data-value=large]::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value=large]::before {
    content: '18px';
}

.ql-snow .ql-picker.ql-size .ql-picker-label[data-value=huge]::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value=huge]::before {
    content: '32px';
}

.ql-snow .ql-picker.ql-header .ql-picker-label::before,
.ql-snow .ql-picker.ql-header .ql-picker-item::before {
    content: '文本';
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="1"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="1"]::before {
    content: '标题1';
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="2"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="2"]::before {
    content: '标题2';
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="3"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="3"]::before {
    content: '标题3';
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="4"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="4"]::before {
    content: '标题4';
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="5"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="5"]::before {
    content: '标题5';
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="6"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="6"]::before {
    content: '标题6';
}

.ql-snow .ql-picker.ql-font .ql-picker-label::before,
.ql-snow .ql-picker.ql-font .ql-picker-item::before {
    content: '标准字体';
}

.ql-snow .ql-picker.ql-font .ql-picker-label[data-value=serif]::before,
.ql-snow .ql-picker.ql-font .ql-picker-item[data-value=serif]::before {
    content: '衬线字体';
}

.ql-snow .ql-picker.ql-font .ql-picker-label[data-value=monospace]::before,
.ql-snow .ql-picker.ql-font .ql-picker-item[data-value=monospace]::before {
    content: '等宽字体';
}
</style>